Layout QML Type

This property allows you to specify the alignment of an item within the cell(s) it occupies.

The default value is 0, which means it will be Qt.AlignVCenter | Qt.AlignLeft. These defaults also apply if only a horizontal or vertical flag is specified: if only a horizontal flag is specified, the default vertical flag will be Qt.AlignVCenter, and if only a vertical flag is specified, the default horizontal flag will be Qt.AlignLeft.

A valid alignment is a combination of the following flags:

• Qt::AlignLeft
• Qt::AlignHCenter
• Qt::AlignRight
• Qt::AlignTop
• Qt::AlignVCenter
• Qt::AlignBottom
• Qt::AlignBaseline

Specifies the bottom margin outside of an item. If the value is not set, it will use the value from margins.

This property was introduced in QtQuick.Layouts 1.2.

See also margins.

This property allows you to specify the column position of an item in a GridLayout.

If both row and this property are not set, it is up to the layout to assign a cell to the item.

The default value is 0.

See also row and columnSpan.

This property allows you to specify the column span of an item in a GridLayout.

The default value is 1.

See also rowSpan and column.

If this property is true, the item will be as tall as possible while respecting the given constraints. If the property is false, the item will have a fixed height set to the preferred height. The default is false, except for layouts themselves, which default to true.

See also fillWidth.

If this property is true, the item will be as wide as possible while respecting the given constraints. If the property is false, the item will have a fixed width set to the preferred width. The default is false, except for layouts themselves, which default to true.

See also fillHeight.

This property allows you to specify the horizontal stretch factor. By default, two identical items arranged in a linear layout will have the same size, but if the first item has a stretch factor of 1 and the second item has a stretch factor of 2, the first item will aim to get 1/3 of the available space, and the second will aim to get 2/3 of the available space. Note that, whether they become exactly 1/3 and 2/3 of the available space depends on their size hints. This is because when e.g a horizontal layout is shown in its minimum width all its child items will consequently also have their minimum width.

Likewise, when a horizontal layout has its preferred width, all child items will have their preferred widths, and when a horizontal layout has its maximum width, all child items will have their maximum widths. This strategy is applied regardless of what the individual stretch factors are. As a consequence of this, stretch factors will only determine the growth rate of child items between the preferredWidth and maximumWidth range.

The default value is -1, which means that no stretch factor is applied.

This property was introduced in Qt 6.5.

See also verticalStretchFactor.

Specifies the left margin outside of an item. If the value is not set, it will use the value from margins.

This property was introduced in QtQuick.Layouts 1.2.

See also margins.

Sets the margins outside of an item to all have the same value. The item itself does not evaluate its own margins. It is the parent's responsibility to decide if it wants to evaluate the margins.

Specifically, margins are only evaluated by ColumnLayout, RowLayout, GridLayout, and other layout-like containers, such as SplitView, where the effective cell size of an item will be increased as the margins are increased.

Therefore, if an item with margins is a child of another Item, its position, size and implicit size will remain unchanged.

Combining margins with alignment will align the item including its margins. For instance, a vertically-centered Item with a top margin of 1 and a bottom margin of 9 will cause the Items effective alignment within the cell to be 4 pixels above the center.

The default value is 0.

This property was introduced in QtQuick.Layouts 1.2.

See also leftMargin, topMargin, rightMargin, and bottomMargin.

The default value is the item's implicit maximum height.

If the item is a layout, the implicit maximum height will be the maximum height the layout can have without any of its items growing beyond their maximum height. The implicit maximum height for any other item is Number.POSITIVE_INFINITY.

Setting this value to -1 will reset the height back to its implicit maximum height.

See also minimumHeight and preferredHeight.

This property holds the maximum width of an item in a layout. The default value is the item's implicit maximum width.

If the item is a layout, the implicit maximum width will be the maximum width the layout can have without any of its items growing beyond their maximum width. The implicit maximum width for any other item is Number.POSITIVE_INFINITY.

Setting this value to -1 will reset the width back to its implicit maximum width.

See also minimumWidth and preferredWidth.

This property holds the minimum height of an item in a layout. The default value is the item's implicit minimum height.

If the item is a layout, the implicit minimum height will be the minimum height the layout can have without any of its items shrinking below their minimum height. The implicit minimum height for any other item is 0.

Setting this value to -1 will reset the height back to its implicit minimum height.

See also preferredHeight and maximumHeight.

This property holds the minimum width of an item in a layout. The default value is the item's implicit minimum width.

If the item is a layout, the implicit minimum width will be the minimum width the layout can have without any of its items shrinking below their minimum width. The implicit minimum width for any other item is 0.

Setting this value to -1 will reset the width back to its implicit minimum width.

See also preferredWidth and maximumWidth.

This property holds the preferred height of an item in a layout. If the preferred height is -1 it will be ignored, and the layout will use implicitHeight instead. The default is -1.

See also minimumHeight and maximumHeight.

This property holds the preferred width of an item in a layout. If the preferred width is -1 it will be ignored, and the layout will use implicitWidth instead. The default is -1.

See also minimumWidth and maximumWidth.

Specifies the right margin outside of an item. If the value is not set, it will use the value from margins.

This property was introduced in QtQuick.Layouts 1.2.

See also margins.

This property allows you to specify the row position of an item in a GridLayout.

If both column and this property are not set, it is up to the layout to assign a cell to the item.

The default value is 0.

See also column and rowSpan.

This property allows you to specify the row span of an item in a GridLayout.

The default value is 1.

See also columnSpan and row.

Specifies the top margin outside of an item. If the value is not set, it will use the value from margins.

This property was introduced in QtQuick.Layouts 1.2.

See also margins.

This property allows you to specify the vertical stretch factor. By default, two identical items arranged in a linear layout will have the same size, but if the first item has a stretch factor of 1 and the second item has a stretch factor of 2, the first item will aim to get 1/3 of the available space, and the second will aim to get 2/3 of the available space. Note that, whether they become exactly 1/3 and 2/3 of the available space depends on their size hints. This is because when e.g a vertical layout is shown in its minimum height all its child items will consequently also have their minimum height.

Likewise, when a vertical layout has its preferred height, all child items will have their preferred heights, and when a vertical layout has its maximum height, all child items will have their maximum heights. This strategy is applied regardless of what the individual stretch factors are. As a consequence of this, stretch factors will only determine the growth rate of child items between the preferredHeight and maximumHeight range.

The default value is -1, which means that no stretch factor is applied.

This property was introduced in Qt 6.5.

See also horizontalStretchFactor.